From: Correlation between pleth variability index and ultrasonic inferior vena cava-collapsibility index in parturients with twin pregnancies undergoing cesarean section under spinal anesthesia
Variable
Mean
SD
BMI (kg/m2)
29.00
3.13
SBP (mmHg)
130.66
9.51
DBP (mmHg)
74.32
8.09
MAP (mmHg)
93.10
7.39
Operation time (min)
54.87
8.05
Surgical bleeding volume (ml)
486.80
96.20